Science fiction conventions are gatherings of the community of fans (calle science fiction fandom) of various forms of speculative fiction including science fiction and fantasy. Historically the focus has been on the written form rather than audiovisual media representations, but this has broadened to include all forms of storytelling. People in attendance at a science fiction convention are traditionally known as members of the convention; invited celebrities including authors are commonly known as guests of the convention, though many professionals including authors will simply attend as members.